1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
#include "eval.h"
#include <string>
#include "error.h"
#include "lang_analysis/lexer_class.h"
#include "lang_analysis/ast.h"
#include "lang_analysis/token.h"
#include "lang_analysis/enum_type.h"
#include "lang_analysis/symbol_property.h"
#include "util/io.h"
using namespace std;
namespace ov4
{
int eval_tree_cd(size_t i, const T_lexer &lexer_instance, bool inside_subshell)
{
// TODO: async
int ret = -1;
println("eval_tree_cd: processing {} subshell {}", i, (lexer_instance.ast[i].subshell ? "TRUE" : "FALSE"));
// if it's a subshell, and current AST's subshell status is not subshell
// (subshell should be forkerd already, then set inside_subshell = true)
// fork itself
if (lexer_instance.ast[i].subshell && !inside_subshell)
{
eval_exe("", false, &lexer_instance, i);
return 0;
}
if (lexer_instance.ast[i].token_type == TEXT)
{
ret = eval_exe(lexer_instance.ast[i].command_text, false);
return ret;
}
if (lexer_instance.ast[i].left != string::npos)
{
ret = eval_tree_cd(lexer_instance.ast[i].left, lexer_instance, false);
}
if (lexer_instance.ast[i].right != string::npos)
{
if (lexer_instance.ast[i].token_type == LOGIC_AND && ret != 0) return ret;
if (lexer_instance.ast[i].token_type == LOGIC_OR && ret == 0) return ret;
ret = eval_tree_cd(lexer_instance.ast[i].right, lexer_instance, false);
}
return ret;
}
}
|
